Pressure-regulating valve



July 24, 1923.

B. E. HOLTON PRESSURE REGULATING VALVE Filed April 15 l 7 k 1/ 4 I w W22 2 6 w 51 w 5 X J PATENT OFFICE...

BIBCHARD E. HOLTON, 0]? LOS lNGELES, CALIFORNIA..

' PRESSURE-REGULATING VALVE.

Application filed April 15, 1922. Serial No. 552,952.

To all whom it may concern:

Be it known that I, 'BIRQHARD E. HOLTON, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Pressure-Regu--la-ting Valves, of which the following is a specification.

This invention relates to valves and more particularly to automaticallyoperative, pressure regulating valves, and has for its object to provideimproved valve closing means of extremely simple, substantial andefficient acting construction. A further object is to provide for thethorough setting of operative parts "of the valve closure and for theready adjustment of the closure, and to provide parts of an inexpensiveconstruction. a

One embodiment of the invention is herein described and illustrated inthe accompanying drawings, in which Figure 1 is an axial section throughthe valve.

Fig. 2 is a section on the plane indicated by line 22 of Fig. 1.

Fig. 3 is a section at right angles to the section of Fig. 1.

The present invention is embodied in a valve having a shell 2 with anannular top.

portion to which is hermetically secured a suitable diaphragm 3 upon thetop of which is provided a spring seat 4 supporting a strong suitablespring 5 freely removable from its seat 4. The upper end of the springis engaged by a button 6 pressed downwardly, for varying the compressionof the spring, by a screw 7 which is threaded in the head of a bonnet 8having an internally threaded flange 9 engaging the rim of the shell 2on which is seated the diaphragm 3.

High pressure is introduced into the shell 2 from a source of supply, asby a pipe 10. The shell is provided with a goose ne'ck port or conduit11 leading inwardly from the supply connection 10 and having an axiallyarranged discharge nipple 12.

The lower end of the shell 2 is provided with a. lug 13 threading at 14into the shell. he plug 13 has an internally threaded lower endreceiving a hollow plug or bushing 15 in which is seated a spring 16.The upper end of the spring is engaged by the contiguous stem 17 of aframe 18. The stem 17 slidably fits in the bore of the plug 13, whilethe upper end of the frame 18 is soldered or otherwise rigidly securedto the lower surface of the diaphragm 3. It will beseen, therefore, thatin the assembly of the parts the frame 18 is yieldably pressed upwardlyagainst the diaphragm 8.

The stem 17 of the frame 18 is internally threaded from end to end andin its upper portion is arranged an adjustably threa ed plug or valveseat 19, the upper end of which is recessed to receive a valve closureor disc 20 desi ed to move into engagement with the end of the nip leand thus cut ofi' the flow of fluid un er pressure through the gooseneck 11. After the seat member 19 has been adjusted to the re quisiteposition with the desired pressure against the ni ple 12, then it islocked in position by a ollower or lock nut 21.

From the above it will be seen that when pressure is admitted throughthe goose neck 11 into the chamber-of the shell 2, the degree ofpressure in the chamber is determined by the pressure of the main spring5 tending to push the diaphragm with its attached frame 18 downwardly asthe pressure in the valve chamber falls below apredetermined degree. Asthe valve closure 20 is forced away from its seat on the nipple 12,fluid under pressure enters from the goose neck 11, and as the pressurein the chamber of the valve shell 2 returns to the predetermined degreeit overcomes the pressure of the sprin 5 by the differential action ofthe diap ragm 3, and the valve closure 20 is again restored to itscutting off position.

The degree of compression of the spring 16 is regulated by adjustment ofthe bushin'gr 15 upon which the spring is mounted. arious changes andmodifications may be made without. departing from the spirit of theinvention as claimed.

What is claimed is: 1

An automatic ressure regulating device including a she a spring resseddiaphragm therein, a frame secure to the dia-' hragm, said shell havingan end portion arming an elongated hearing part, said frame having ahollow stem operatively fitting said bearing-- and being prevented 6thereby from having side play; a bushing Plug adjustabiy' mounted in thesaid hearing part, e spring engaging the near end of eme? said stem andthe bushing, a valve plug adjustably threaded in said stem, and a lockplug in the stem, and a port member en- 10 gaged by the valve plu Intestimony whereof I have signed my name to this specification.

B. E. HOLTON.

